Positioning structure of biological chip

The utility model relates to the field, in particular to a positioning structure of a biological chip, which adopts the technical scheme that the positioning structure comprises a positioning table, push plates are clamped on the two sides of the top of the positioning table, clamping blocks are fixedly connected to the two ends of the bottom of each push plate, and sliding grooves are formed in the two ends of the top of the positioning table; the outer walls of the four clamping blocks are connected with the inner walls of the two sliding grooves in a clamped mode correspondingly, springs are fixedly connected to the two ends of one sides of the two push plates correspondingly, positioning plates are fixedly connected to one ends of the two springs correspondingly, and the two ends of one side of each positioning plate are fixedly connected with one ends of the two springs correspondingly. And by arranging the spring between the push plate and the positioning plate and arranging the protective layer on one